自动陀螺仪定向精度优化技术研究

Research on accuracy optimization technology of the auto-gyrotheodolite orientation

陀螺经纬仪是一种能测定真北方位的自主定向仪器,它在国民经济和国防建设中发挥着重要作用。其中如何准确测定仪器常数将直接影响到定向精度,因此分析影响仪器常数的变化因素是提高定位可靠性的关键问题。本文分析研究了影响自动陀螺仪仪器常数的主要因素,同时提出了陀螺经纬仪器的定位精度优化策略与优化方法,并将其应用于广州市城市轨道交通生产实际中,取得了良好效果,可以推广到工程应用中。

Gyrotheodolite is an equipment which can indicate the real north independently. It has played a very important role in national economy and defense. Accurate determination of the instrument orientation constant will directly affect the accuracy of azimuth. Therefore, analysis of factors that affect the instrument constant changing is a key issue to improve positioning reliability. This paper analyzes main factors affecting auto-gyrotheodolite instrument constants. The optimization strategy and method of positioning of the gyroscope instrument are proposed and applied in Guangzhou city metro line construction work with good results achieved. It can be extended to similar engineering applications.